Well Corey (ordonez) was on a 200 mile trip to a mod meet and on the highway his pacesetters decided to go open pacesetters. He had to drive highway speeds really far! Loud noise I assume!
The best thing for your car would be to fix that and get on some kind of scanner. I noticed your mod list doesn't have a PT or Aeroforce gauge at least.

that same thing happend to me yestarday well almost same, it sounded like my headers became open but when i took it to my shop(builder) i noticed the the bung blug for the rear o2 poped off...easy fix and it toned down abit, i still dont like the sound out of the headers it sounds like one of those small propellar airplanes, i went ahead and check to see where my leaks are, the crossover is fine i presume but i know for sure that "Y" is so ill get it welded when im home, i found a coolant leak too, it was an open hole on the manifold under the snout of the s/c below that "T" vacuum line and also under the colant elbow piece tha goes from the maifold to the alt. baraket
so i plugged it with a small bolt my car has been idling funny sometimes since i dont that though im wondering if there is sopposed to be some sort of bleeder bolt there or something, either way it was open and leaking coolant, ill research it to find the prper part, besides that all my other vacuum lines are intact and where they are supposed to be, last step i need to take is rear o2 simulator/emulator which ever it is and a new front o2 and im thinking about deleting my egr since it doesnt fit well with the pacestters( you get what you pay for)

just do the penny mod to delete the egr.

and ive said it before, headers make your exhaust sound like crap

Mine doesn't sound like crap! It has a litle more rasp due to no Cat and the TOGs, but I stuck with stock muffs, and most seem not too.

I like the louder idle sound. But idle is the only thing I don't hate about 3800 exhaust sound.

im going to do that penny trick to the egr next weekend, its cheaper and it works so i heard i searched around in previous posts, and i seen an idea that i like.

its worked for me for a while now.

since the header install my car has been stalling once in a while why the heck would it do this?

this is due to your other problem. your car is stalling and not making boost... vacuum leak.

all my vacuum hoses and such are intack but since i got pacesetters the tube that goes from the egr to the header doesnt fit well, could this be it, im stumped else wise because i followed all the hoses and checked fitings

someone correct me if im wrong...

but with the egr just sitting there with all of that umetered air coming into the LIM that is like a gigantic vacuum leak. there's your problem

wooooooo!!!!!!!!!! thanks, just wanted confirmation.

just go out there and JB weld a penny onto both ends. one on the header and one on the LIM tube.

problem solved!

austingtp put a breather on the end of the tube comming off the header and blocked the hole on the header i could do that also?

He did, where did you get that info, I'd like to see. Anyways, you probably be throwing a code or two since the EGR will be blocked. I believe it has two codes for the EGR. Need a way to adjust that via tuner. Just do something to delete the damn EGR, less headaches.